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<FONT color="green">001</FONT>    /**<a name="line.1"></a>
<FONT color="green">002</FONT>     * This class represents the collected sensor data as a tree widget.<a name="line.2"></a>
<FONT color="green">003</FONT>     */<a name="line.3"></a>
<FONT color="green">004</FONT>    package org.hackystat.ui.sensordataviewer.client;<a name="line.4"></a>
<FONT color="green">005</FONT>    <a name="line.5"></a>
<FONT color="green">006</FONT>    import java.util.ArrayList;<a name="line.6"></a>
<FONT color="green">007</FONT>    import java.util.Date;<a name="line.7"></a>
<FONT color="green">008</FONT>    import java.util.Iterator;<a name="line.8"></a>
<FONT color="green">009</FONT>    <a name="line.9"></a>
<FONT color="green">010</FONT>    import com.google.gwt.user.client.ui.Tree;<a name="line.10"></a>
<FONT color="green">011</FONT>    <a name="line.11"></a>
<FONT color="green">012</FONT>    /**<a name="line.12"></a>
<FONT color="green">013</FONT>     * This class embodies an ordered list of sensor data events as a tree widget.<a name="line.13"></a>
<FONT color="green">014</FONT>     * @author David J. Nickles<a name="line.14"></a>
<FONT color="green">015</FONT>     *<a name="line.15"></a>
<FONT color="green">016</FONT>     */<a name="line.16"></a>
<FONT color="green">017</FONT>    public class EventCollection extends Tree {<a name="line.17"></a>
<FONT color="green">018</FONT>      <a name="line.18"></a>
<FONT color="green">019</FONT>      private static int oddoreven;<a name="line.19"></a>
<FONT color="green">020</FONT>      private int count;<a name="line.20"></a>
<FONT color="green">021</FONT>      private int modCount;<a name="line.21"></a>
<FONT color="green">022</FONT>      private CompositeWidget master;<a name="line.22"></a>
<FONT color="green">023</FONT>      private Date lastArrivalTstamp;<a name="line.23"></a>
<FONT color="green">024</FONT>      private ArrayList modEventsCache;<a name="line.24"></a>
<FONT color="green">025</FONT>    <a name="line.25"></a>
<FONT color="green">026</FONT>      /**<a name="line.26"></a>
<FONT color="green">027</FONT>       * Initializes a SDBEventCollection for classifying and storing SDBEvents.<a name="line.27"></a>
<FONT color="green">028</FONT>       * @param list of the request response from the servlet<a name="line.28"></a>
<FONT color="green">029</FONT>       * <a name="line.29"></a>
<FONT color="green">030</FONT>       * @gwt.typeArgs list &lt;java.util.ArrayList&lt;java.lang.String&gt;&gt;<a name="line.30"></a>
<FONT color="green">031</FONT>       */<a name="line.31"></a>
<FONT color="green">032</FONT>      private final void populate(ArrayList list) {<a name="line.32"></a>
<FONT color="green">033</FONT>        /** @gwt.typeArgs myit &lt;org.hackystat.ui.sensordataviewer.SDVEvent&gt; */<a name="line.33"></a>
<FONT color="green">034</FONT>        Iterator modit = this.modEventsCache.iterator();<a name="line.34"></a>
<FONT color="green">035</FONT>        while (modit.hasNext()) {<a name="line.35"></a>
<FONT color="green">036</FONT>          ((Event)modit.next()).age();<a name="line.36"></a>
<FONT color="green">037</FONT>        }<a name="line.37"></a>
<FONT color="green">038</FONT>        /** @gwt.typeArgs modEventsCache &lt;org.hackystat.ui.sensordataviewer.SDVEvent&gt; */<a name="line.38"></a>
<FONT color="green">039</FONT>        this.modEventsCache = new ArrayList();<a name="line.39"></a>
<FONT color="green">040</FONT>        Event lastEvent = null;<a name="line.40"></a>
<FONT color="green">041</FONT>        long lastEventTstamp = 0L;<a name="line.41"></a>
<FONT color="green">042</FONT>        if (this.getItemCount() &gt; 0) {<a name="line.42"></a>
<FONT color="green">043</FONT>          lastEvent = (Event)this.getItem(this.getItemCount() - 1);<a name="line.43"></a>
<FONT color="green">044</FONT>          lastEventTstamp = lastEvent.getEventTstamp();<a name="line.44"></a>
<FONT color="green">045</FONT>        }<a name="line.45"></a>
<FONT color="green">046</FONT>        Event e = null;<a name="line.46"></a>
<FONT color="green">047</FONT>        this.modCount = 0;<a name="line.47"></a>
<FONT color="green">048</FONT>        /** @gwt.typeArgs it &lt;org.hackystat.ui.sensordataviewer.SDVEvent&gt; */<a name="line.48"></a>
<FONT color="green">049</FONT>        Iterator it = list.listIterator();<a name="line.49"></a>
<FONT color="green">050</FONT>        while (it.hasNext()) {<a name="line.50"></a>
<FONT color="green">051</FONT>          /** @gwt.typeArgs rawEvent &lt;java.lang.String&gt; */<a name="line.51"></a>
<FONT color="green">052</FONT>          ArrayList rawEvent = (ArrayList)it.next();<a name="line.52"></a>
<FONT color="green">053</FONT>          e = new Event(rawEvent, ++this.oddoreven, this.master);<a name="line.53"></a>
<FONT color="green">054</FONT>          this.modCount += e.size();<a name="line.54"></a>
<FONT color="green">055</FONT>          this.count += e.size();<a name="line.55"></a>
<FONT color="green">056</FONT>          // add e to modEventsCache<a name="line.56"></a>
<FONT color="green">057</FONT>          if (e.getEventTstamp() &gt; lastEventTstamp) {<a name="line.57"></a>
<FONT color="green">058</FONT>            addItem(e);<a name="line.58"></a>
<FONT color="green">059</FONT>            this.modEventsCache.add(e);<a name="line.59"></a>
<FONT color="green">060</FONT>          }<a name="line.60"></a>
<FONT color="green">061</FONT>          else if (e.getEventTstamp() == lastEventTstamp) {<a name="line.61"></a>
<FONT color="green">062</FONT>            lastEvent.merge(e);<a name="line.62"></a>
<FONT color="green">063</FONT>            this.modEventsCache.add(lastEvent);<a name="line.63"></a>
<FONT color="green">064</FONT>          }<a name="line.64"></a>
<FONT color="green">065</FONT>          else {<a name="line.65"></a>
<FONT color="green">066</FONT>            Event existingEvent = null;<a name="line.66"></a>
<FONT color="green">067</FONT>            boolean eventNotAdded = true;<a name="line.67"></a>
<FONT color="green">068</FONT>            /** @gwt.typeArgs myit &lt;org.hackystat.ui.sensordataviewer.SDVEvent&gt; */<a name="line.68"></a>
<FONT color="green">069</FONT>            Iterator myit = this.iterator();<a name="line.69"></a>
<FONT color="green">070</FONT>            while (myit.hasNext()) {<a name="line.70"></a>
<FONT color="green">071</FONT>              existingEvent = (Event)myit.next();<a name="line.71"></a>
<FONT color="green">072</FONT>              if (e.getEventTstamp() == existingEvent.getEventTstamp()) {<a name="line.72"></a>
<FONT color="green">073</FONT>                existingEvent.merge(e);<a name="line.73"></a>
<FONT color="green">074</FONT>                this.modEventsCache.add(existingEvent);<a name="line.74"></a>
<FONT color="green">075</FONT>                eventNotAdded = false;<a name="line.75"></a>
<FONT color="green">076</FONT>                break;<a name="line.76"></a>
<FONT color="green">077</FONT>              } <a name="line.77"></a>
<FONT color="green">078</FONT>              else if (e.getEventTstamp() &lt; existingEvent.getEventTstamp()) {<a name="line.78"></a>
<FONT color="green">079</FONT>                /** @gwt.typeArgs holdingpin &lt;org.hackystat.ui.sensordataviewer.SDVEvent&gt; */<a name="line.79"></a>
<FONT color="green">080</FONT>                ArrayList holdingpin = new ArrayList();<a name="line.80"></a>
<FONT color="green">081</FONT>                holdingpin.add(existingEvent);<a name="line.81"></a>
<FONT color="green">082</FONT>                while (myit.hasNext()) {<a name="line.82"></a>
<FONT color="green">083</FONT>                  holdingpin.add(myit.next());<a name="line.83"></a>
<FONT color="green">084</FONT>                }<a name="line.84"></a>
<FONT color="green">085</FONT>                addItem(e);<a name="line.85"></a>
<FONT color="green">086</FONT>                this.modEventsCache.add(e);<a name="line.86"></a>
<FONT color="green">087</FONT>                /** @gwt.typeArgs myit &lt;org.hackystat.ui.sensordataviewer.SDVEvent&gt; */<a name="line.87"></a>
<FONT color="green">088</FONT>                Iterator pinit = this.iterator();<a name="line.88"></a>
<FONT color="green">089</FONT>                while (pinit.hasNext()) {<a name="line.89"></a>
<FONT color="green">090</FONT>                  addItem((Event)pinit.next());<a name="line.90"></a>
<FONT color="green">091</FONT>                }<a name="line.91"></a>
<FONT color="green">092</FONT>                eventNotAdded = false;<a name="line.92"></a>
<FONT color="green">093</FONT>                break;<a name="line.93"></a>
<FONT color="green">094</FONT>              }<a name="line.94"></a>
<FONT color="green">095</FONT>            }<a name="line.95"></a>
<FONT color="green">096</FONT>            if (eventNotAdded) {<a name="line.96"></a>
<FONT color="green">097</FONT>              addItem(e);<a name="line.97"></a>
<FONT color="green">098</FONT>              this.modEventsCache.add(e);<a name="line.98"></a>
<FONT color="green">099</FONT>            }<a name="line.99"></a>
<FONT color="green">100</FONT>          }<a name="line.100"></a>
<FONT color="green">101</FONT>        }<a name="line.101"></a>
<FONT color="green">102</FONT>        Date tstamp = e.getLastTstamp();<a name="line.102"></a>
<FONT color="green">103</FONT>        if (tstamp.after(this.lastArrivalTstamp)) {<a name="line.103"></a>
<FONT color="green">104</FONT>          this.lastArrivalTstamp = tstamp;<a name="line.104"></a>
<FONT color="green">105</FONT>        }<a name="line.105"></a>
<FONT color="green">106</FONT>      }<a name="line.106"></a>
<FONT color="green">107</FONT>    <a name="line.107"></a>
<FONT color="green">108</FONT>      /**<a name="line.108"></a>
<FONT color="green">109</FONT>       * Creates an empty SDVEventColelction for classifying and storing SDVEvents.<a name="line.109"></a>
<FONT color="green">110</FONT>       * @param widget SDBWidget that contains this tree<a name="line.110"></a>
<FONT color="green">111</FONT>       */<a name="line.111"></a>
<FONT color="green">112</FONT>      public EventCollection(CompositeWidget widget) {<a name="line.112"></a>
<FONT color="green">113</FONT>        this.master = widget;<a name="line.113"></a>
<FONT color="green">114</FONT>        this.lastArrivalTstamp = new Date(0);<a name="line.114"></a>
<FONT color="green">115</FONT>        /** @gwt.typeArgs modEventsCache &lt;org.hackystat.ui.sensordataviewer.SDVEvent&gt; */<a name="line.115"></a>
<FONT color="green">116</FONT>        this.modEventsCache = new ArrayList();<a name="line.116"></a>
<FONT color="green">117</FONT>      }<a name="line.117"></a>
<FONT color="green">118</FONT>    <a name="line.118"></a>
<FONT color="green">119</FONT>      /**<a name="line.119"></a>
<FONT color="green">120</FONT>       * Creates a SDBEventColelction that contsins the new list of items as SDBEvents.<a name="line.120"></a>
<FONT color="green">121</FONT>       * @param list of items to put into the Tree.<a name="line.121"></a>
<FONT color="green">122</FONT>       * @param widget the master composite widget that contains this widget<a name="line.122"></a>
<FONT color="green">123</FONT>       * <a name="line.123"></a>
<FONT color="green">124</FONT>       * @gwt.typeArgs list &lt;java.lang.String&gt;<a name="line.124"></a>
<FONT color="green">125</FONT>       */<a name="line.125"></a>
<FONT color="green">126</FONT>      public EventCollection(CompositeWidget widget, ArrayList list) {<a name="line.126"></a>
<FONT color="green">127</FONT>        this.master = widget;<a name="line.127"></a>
<FONT color="green">128</FONT>        this.lastArrivalTstamp = new Date(0);<a name="line.128"></a>
<FONT color="green">129</FONT>        /** @gwt.typeArgs modEventsCache &lt;org.hackystat.ui.sensordataviewer.SDVEvent&gt; */<a name="line.129"></a>
<FONT color="green">130</FONT>        this.modEventsCache = new ArrayList();<a name="line.130"></a>
<FONT color="green">131</FONT>        populate(list);<a name="line.131"></a>
<FONT color="green">132</FONT>      }<a name="line.132"></a>
<FONT color="green">133</FONT>      <a name="line.133"></a>
<FONT color="green">134</FONT>      /**<a name="line.134"></a>
<FONT color="green">135</FONT>       * This method resets the Tree to contain only the new list of items.<a name="line.135"></a>
<FONT color="green">136</FONT>       * @param list of items to put into the Tree.<a name="line.136"></a>
<FONT color="green">137</FONT>       * @return a Tree reset to contain only the new list of items.<a name="line.137"></a>
<FONT color="green">138</FONT>       * <a name="line.138"></a>
<FONT color="green">139</FONT>       * @gwt.typeArgs list &lt;java.lang.String&gt;<a name="line.139"></a>
<FONT color="green">140</FONT>       */<a name="line.140"></a>
<FONT color="green">141</FONT>      public Tree resetSensorData(ArrayList list) {<a name="line.141"></a>
<FONT color="green">142</FONT>        this.count = 0;<a name="line.142"></a>
<FONT color="green">143</FONT>        this.clear();<a name="line.143"></a>
<FONT color="green">144</FONT>        populate(list);<a name="line.144"></a>
<FONT color="green">145</FONT>        return this;<a name="line.145"></a>
<FONT color="green">146</FONT>      }<a name="line.146"></a>
<FONT color="green">147</FONT>    <a name="line.147"></a>
<FONT color="green">148</FONT>      /**<a name="line.148"></a>
<FONT color="green">149</FONT>       * Adds the sensor data index items to this SDVEventCollection's list of items as SDVEvents.<a name="line.149"></a>
<FONT color="green">150</FONT>       * @param list of items to put into the Tree.<a name="line.150"></a>
<FONT color="green">151</FONT>       * <a name="line.151"></a>
<FONT color="green">152</FONT>       * @gwt.typeArgs list &lt;java.lang.String&gt;<a name="line.152"></a>
<FONT color="green">153</FONT>       */<a name="line.153"></a>
<FONT color="green">154</FONT>      public void addSensorData(ArrayList list) {<a name="line.154"></a>
<FONT color="green">155</FONT>        populate(list);<a name="line.155"></a>
<FONT color="green">156</FONT>        this.count += list.size();<a name="line.156"></a>
<FONT color="green">157</FONT>      }<a name="line.157"></a>
<FONT color="green">158</FONT>      <a name="line.158"></a>
<FONT color="green">159</FONT>      /**<a name="line.159"></a>
<FONT color="green">160</FONT>       * Gets the count of elements.<a name="line.160"></a>
<FONT color="green">161</FONT>       * @return the count of elements.<a name="line.161"></a>
<FONT color="green">162</FONT>       */<a name="line.162"></a>
<FONT color="green">163</FONT>      public int size() {<a name="line.163"></a>
<FONT color="green">164</FONT>        return this.count;<a name="line.164"></a>
<FONT color="green">165</FONT>      }<a name="line.165"></a>
<FONT color="green">166</FONT>      <a name="line.166"></a>
<FONT color="green">167</FONT>      /**<a name="line.167"></a>
<FONT color="green">168</FONT>       * Gets the count of new elements.<a name="line.168"></a>
<FONT color="green">169</FONT>       * @return the count of new elements.<a name="line.169"></a>
<FONT color="green">170</FONT>       */<a name="line.170"></a>
<FONT color="green">171</FONT>      public int modSize() {<a name="line.171"></a>
<FONT color="green">172</FONT>        return this.modCount;<a name="line.172"></a>
<FONT color="green">173</FONT>      }<a name="line.173"></a>
<FONT color="green">174</FONT>    <a name="line.174"></a>
<FONT color="green">175</FONT>      /**<a name="line.175"></a>
<FONT color="green">176</FONT>       * Gets the timestamp of the last item in this event.<a name="line.176"></a>
<FONT color="green">177</FONT>       * @return Date object that is the last timestamp that occurs in this collection.<a name="line.177"></a>
<FONT color="green">178</FONT>       */<a name="line.178"></a>
<FONT color="green">179</FONT>      public Date getLastTstamp() {<a name="line.179"></a>
<FONT color="green">180</FONT>        return this.lastArrivalTstamp;<a name="line.180"></a>
<FONT color="green">181</FONT>      }<a name="line.181"></a>
<FONT color="green">182</FONT>    }<a name="line.182"></a>




























































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